Wednesday, March 12, 2014

Mega Discovery! 715 Alien Planets Confirmed Using A New Trick On Old Kepler Data

Mega Discovery! 715 Alien Planets Confirmed Using A New Trick On Old Kepler Data:



Meet Kepler-22b, an exoplanet with an Earth-like radius in the habitable zone of its host star. Unfortunately its mass remains unknown. Image Credit: NASA



Among Kepler’s 715-planet find was four planets slightly larger than Earth that orbit in what could be the habitable regions of their parent stars. Credit: NASA
Planet-watchers, some exciting news: you know how we keep talking about planet candidates, those planets that have yet to be confirmed, when we reveal stories about other worlds? That’s because verifying that the slight dimming of a star’s light is due to a planet takes time – -specifically, to have other telescopes verify it through examining gravitational wobbles on the parent star.

Turns out there’s a way to solve the so-called “bottleneck” of planet candidates vs. confirmed planets. NASA has made use of a new technique that they say will work for multi-planet systems, one that already has results: a single Kepler release of data today (Feb. 26) yielded 715 new planets in one shot. That almost doubles the amount of known planets found before today, which was just under 1,000, officials said.

“This is the largest windfall of planets, not exoplanet candidates, but actual verified exoplanets announced at one time,” said Doug Hudgins, a NASA exoplanet exploration program scientist based in Washington, D.C., at a press conference today. What’s more, among the release were four planets (about double to 2.5 times the size of Earth) that could be considered habitable: Kepler-174 d, Kepler-296 f, Kepler-298 d, Kepler-309 c.

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Read the rest of Mega Discovery! 715 Alien Planets Confirmed Using A New Trick On Old Kepler Data (609 words)


© Elizabeth Howell for Universe Today, 2014. |
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